Write the notes : Double displacement Reaction - Vidyadip

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Write the notes : Double displacement Reaction

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Answer

The reaction in which the ions in the reactants are exchanged to form a precipitate are called double displacement reactions.
$ BaSO _{4( aq )} + K _2 CrO _{4( aq )} \rightarrow BaCrO _4+ K _2 SO _4$
$\text { Barium } \text { Potassium } \text { Barium } \text { Potassium }$
$\text { sulphate } \text { chromate } \text { chromate } \text { sulphate }$
Potassium chromate solution reacts with Barium sulphate solution to form Potassium Sulphate solution and a yellow precipitate of Barium chromate $(BaCrO_4)$

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